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DIC_ROCK_NAMEV3 (3025 rows)
Dictionary table which is part of version 3 of the BGS Rock Classification Scheme. The main part of the RCS - it contains only single lithologies.

Displaying rows 681 to 700 of 3025

Row	CODE	DESCRIPTION	RCS_STATUS	TRANSLATION	Q1	Q2	Q3	USER_ENTERED	DATE_ENTERED	USER_UPDATED	DATE_UPDATED	DEFINITION_BKING	STATUS
681	GBL	Leucogabbro	N	Leucogabbro				AWEL	11-OCT-02	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; lighter than average, more than normal felsic minerals, M<35% quartz <5% of QAPF, feldspar >90% plagioclase (>50% An) +/- mica/pyroxene/amphibole/olivine.	C
682	GBM	Gabbro, migmatitic	U	Migmatitic gabbro	migmatitic			AWEL	23-FEB-01	TMCM	31-AUG-18	Megascopically composite rock (protolith partly gabbro) of two or more petrographically different layers/parts, including mesosome or palaeosome (apparent metamorphic country rock), leucosome (leucocratic, quartz/feldspar), melanosome (melanocratic)	C
683	GBNO	Gabbronorite - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 10 - 90%, pyroxene 5 - 90% (>5% clino- and orthopyroxene) and olivine <5% of plagioclase + pyroxene + olivine. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14.	R	Gabbronorite				GRBA	24-FEB-00	TMCM	22-FEB-19	Coarse-grained, av.between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagioclase (>50% An), plagioclase 10-90%, pyroxenes 5-90% (>5% clino- and orthopyroxene), olivine <5% of Plag+Px+Ol +/- mica/amphibole	C
684	GBR	Gabbroic-rock - A type of coarse-grained normal crystalline rock. In the Rock Classification Scheme, this class includes gabbro, monzogabbro, and similar rocks. The term may be used as a field classification when an accurate mineral mode from thin section examination is not available. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 10.	A	Gabbroic-rock				GRBA	24-FEB-00	TMCM	22-FEB-19	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <20% or felspathoids <10% of QAPF, feldspar >65% plagioclase (>50% An) +/- mica/pyroxene/amphibole/olivine	C
685	GBRA	Gabbroic-rock, appinitic	U	Appinitic gabbroic-rock	appinitic			AWEL	19-MAR-04	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <20% or felspathoids <10% of QAPF, feldspar >65% plagi (>50% An) +/- mica/pyroxeneolivine. With coarse-grained euhedral hornblende in anhedral to poikilitic feldspar matrix.	C
686	GBRCNT	Gabbroic-rock, contaminated	U	Contaminated gabbroic-rock	contaminated			AWEL	07-OCT-03	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <20% or felspathoids <10% of QAPF, feldspar >65% plagioclase (>50% An) +/- mica/pyroxene/amphibole/olivine. Contains minerals/rocks not part of the normal chemistry/mineralogy.	C
687	GBRH	Gabbroic-rock, hornfelsed	U	Hornfelsed gabbroic-rock	hornfelsed			AWEL	23-JAN-02	TMCM	31-AUG-18	Hard granoblastic rock, grains 0.032-2mm recrystallised by contact metamorphism, no parting planes, pre-existing features seen as lithological heterogeneities. Protolith gabbroic-rock quartz <20% or felspathoids <10% of QAPF, feldspar >65% plag (>50% An).	C
688	GBRMG	Gabbroic-rock, magnetic	U	Magnetic gabbroic-rock	magnetic			AWEL	26-JUL-01	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <20% or felspathoids <10% of QAPF, feld >65% plagioclase (>50% An) +/- mica/pyroxene/amphibole/olivine. Contains 5-20% of magnetic mineral(s) such as magnetite.	C
689	GBS	Gabbro (s.s.) - A type of gabbro. In the Rock Classification Scheme, it is a gabbro with plagioclase 10 - 90%, pyroxene 5 - 90% (<5% orthopyroxene) and olivine < 5% of plagioclase + pyroxene + olivine. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 13, 14.	R	Gabbro (s.s.)				GRBA	24-FEB-00	TMCM	22-FEB-19	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagioclase (>50% An), plagioclase 10-90%, pyroxenes 5-90% (<5% orthopyroxene), olivine <5% of Plag+Px+O, +/- mica/amphibole	C
690	GBSH	Gabbro, sheared	U	Sheared gabbro	sheared			AWEL	23-JAN-02	TMCM	31-AUG-18	Coarse-grained, 2-16mm normal crystalline intrusive rock; qtz <5% of QAPF, feldspar >90% plag (>50% An) +/-mica/Px/amph/olivine. Relative movement of contiguous parts parallel to their plane of contact. May cause cataclasis, granulation, mylonitisation.	C
691	GBXEN	Gabbro, xenolithic	U	Xenolithic gabbro	xenolithic			AWEL	26-FEB-01	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz <5% of QAPF, feldspar >90% plagio (>50% An) +/- mica/pyroxene/amphibole/olivine. Contains frags of earlier solidified host/other rock in the host, size & composition undefined.	C
692	GD	Granodiorite - A type of granitic-rock. In the Rock Classification Scheme, it is a coarse-grained crystalline igneous rock whose mineral mode plots in field 4 of the quartz - alkali feldspar - plagioclase - feldspathoid (QAPF) diagram. British Geological Survey Research Report RR/99/06, section 5.1 and figs. 9, 11, 12.	R	Granodiorite				GRBA	24-FEB-00	TMCM	22-FEB-19	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica/amphibole	C
693	GDBI	Granodiorite, biotite	U	Biotite granodiorite	biotite			AWEL	29-JAN-01	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/-amphibole. 5-20% biotite.	C
694	GDFO	Granodiorite, foliated	U	Foliated granodiorite	foliated			GRBA	24-FEB-00	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock, preferred planar orientation of inequidiamensional minerals; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica/amphibole	C
695	GDGNS	Granodiorite, gneissose	U	Gneissose granodiorite	gneissose			AWEL	16-MAR-01	TMCM	31-AUG-18	Medium-coarse grained av. 0.25-16mm crystalloblastic metamorphic rock, >5mm irregular layers of contrasting grain size/mineralogy, preferred mineral orientation common. Granodiorite protolith; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica.	C
696	GDHB	Granodiorite, hornblende	U	Hornblende granodiorite	hornblende			AWEL	20-FEB-01	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica. 5-20% hornblende.	C
697	GDHP	Granodiorite, k-feldspar-megacrystic-hornblende	U	K-feldspar-megacrystic-hornblende granodiorite	k-feldspar	megacrystic	hornblende	AWEL	23-MAY-01	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica/pyroxene/olivine. K-feldspar16mm.	C
698	GDHY	Granodiorite, hyperstene	U	Hypersthene granodiorite	hypersthene			AWEL	23-JAN-02	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; quartz 20-60% of QAPF, feldspar 65-90% plagioclase +/- mica/amphibole. 5-20% hypersthene.	C
699	GDL	Leucogranodiorite	N	Leucogranodiorite				AWEL	20-FEB-01	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; lighter than average M<5%, quartz 20-60% of QAPF, feldspar 65-90% plagioclase, +/- mica/pyroxene/amphibole/olivine.	C
700	GDM	Melagranodiorite	N	Melagranodiorite				AWEL	20-FEB-01	TMCM	31-AUG-18	Coarse-grained, av. between 2-16mm normal crystalline intrusive rock; darker than average, M >25%, quartz 20-60% of QAPF, feldspar 65-90% plagioclase, +/- mica/pyroxene/amphibole/olivine.	C

Displaying rows 681 to 700 of 3025